Coffee maker



FIG. 1 is a perspective view of a coffee maker showing my new design;

FIG. 2 is a front view of the coffee maker illustrated in FIG. 1;

FIG. 3 is a first side view of the coffee maker illustrated in FIG. 1;

FIG. 4 is a second side view of the coffee maker illustrated in FIG. 1;

FIG. 5 is a rear view of the coffee maker illustrated in FIG. 1;

FIG. 6 is a top view of the coffee maker illustrated in FIG. 1; and,

FIG. 7 is a bottom view of the coffee maker illustrated in FIG. 1. 

The ornamental design for a coffee maker, as shown and described. 